Area Monitoring Sensors monitor the outside and indoor temperatures and turn on the heater, air conditioner, or windows to create a comfortable environment. The acceleration of anybody or object in its instantaneous rest frame is measured using an accelerometer sensor. These sensors are very easy to install and simple to use. Area Monitoring Sensors are found in a variety of electrical products, smartphones, and wearable devices, among other places. Individual workers' radiation doses are measured through personal monitoring. They are very effective as well as economical and safe to use.